Questions tagged [safearray]
145 questions
0
votes
1 answer
SafeArrayPutElement method throws System.AccessViolationException
I am trying to pass an array of ints from C# to C++/CLI. Here's my code:
// SafeArrayTesting_PlusPlus.cpp
#include "stdafx.h"
#include
using namespace System;
namespace SafeArrayTesting_PlusPlus
{
public ref class…
user181813
- 1,861
- 6
- 24
- 42
0
votes
1 answer
SAFEARRAY* to QByteArray
I'm get through c++ invoke(...) method result at type VARIANT * var. var is .bmp image.
qDebug() << var.vt; //8209 ~ VT_ARRAY|VT_UI1 ~ SAFEARRAY(BYTE)
How convert it from SAFEARRAY(BYTE) to QByteArray? Or how get QImage (QPixmap, QBitmap)? Thanks/.
magrif
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- 20
0
votes
1 answer
How work with SAFEARRAY ** in Qt ActiveX
How work with SAFEARRAY ** in Qt ActiveX? What kind of type SAFEARRAY ** in Qt?
0
votes
1 answer
WCF Com Interop GetRecordInfoFromGuids Returns Old Format Or Invalid Type Library
I have a struct in a WCF Service defined in C# as
[DataContract]
[StructLayout(LayoutKind.Sequential), Serializable]
[ComVisible(true)]
public struct MyData
{
[DataMember]
public int data1;
[DataMember]
public…
TimR75
- 379
- 2
- 13
0
votes
2 answers
Create SAFEARRAY of Strings in Python
I'm trying to call a COM method that requires a SafeArray of Strings to be passed as reference, which is then filled up with the method results. This is the code in VBA, which works flawlessly:
dimr RC as New RAS41.HECRASController
RC.Project_Open…
esteldunedain
- 1
- 1
- 2
0
votes
0 answers
Why does SafeArrayUnaccessData throws debug assertion failed
Below is my code
int _tmain(int argc, _TCHAR* argv[])
{
CComSafeArray sa;
vector vec;
for (int i = 0; i<3 ; i++ )
{
func(&(sa.m_psa));
long* pVals;
HRESULT hr = SafeArrayAccessData(sa,…
samnaction
- 1,194
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0
votes
1 answer
How to call a .NET COM method with an array from delphi using PSafeArray?
I have an .NET (4.0) interface which is implemented with a ServicedComponent COM+ class:
interface DotNetIface
{
void MethodRef(var System.Guid guid);
void MethodArray(System.Guid[] guids, params object[] parameters);
void…
Sebastian
- 6,293
- 6
- 34
- 47
0
votes
1 answer
How do I pass an array of structs (containing std:string or BSTR) from ATL to C#. SafeArray? Variant?
I have an ATL COM object that I am using from C#. The interface currently looks like:
interface ICHASCom : IDispatch{
[id(1), helpstring("method Start")] HRESULT Start([in] BSTR name, [out,retval] VARIANT_BOOL* result);
...
[id(4),…
Dave
- 8,095
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- 99
0
votes
1 answer
E_INVALIDARG exception passing a SAFEARRAY of UDT from Managed to COM
a similar problem is posted many times here but I cannot figure out why I get this COM Exception.
I have an IDL file like:
typedef [uuid(A6F30630-53F5-4688-829A-C084BA1C7DC0)]
enum EMaskActions
{
....
}EMaskActions;
typedef…
Barzo
- 1,039
- 1
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- 37
0
votes
0 answers
Python -COMMETHOD ,No return value obtained
I am very new to COM programming, Our project requires the Python script to make communication with a COM dll which is written in C#.
The generated COM signature in Python is as below
COMMETHOD([dispid(1610743820)], HRESULT, 'test',
(…
Sanju
- 1,974
- 1
- 18
- 33
0
votes
1 answer
How do you get the underlying SAFEARRAY from a CComSafeArray?
I tried the GetSafeArrayPtr() method which returns a LPSAFEARRAY* that a typedef defined as:
typedef /* [wire_marshal] */ SAFEARRAY *LPSAFEARRAY;
I thought I would be able to directly assign this to a SAFEARRAY* variable but the compiler gives this…
bobbyalex
- 2,681
- 3
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- 51
0
votes
0 answers
SafeArray of objects
I want to pass a SafeArray to a function in C++ COM.
I have an object of MetadataListEntity class that I have initialized
IMetadataListEntityPtr metadataListEntity = NULL;
hr = CoCreateInstance(
__uuidof(MetadataListEntity),
NULL,
…
Gags
- 827
- 2
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- 29
0
votes
1 answer
Merge two SAFEARRAY's - SafeArrayPutElement memory access violation
I am getting some memory access violation while execute the following code:
UINT cDims = 1;
SAFEARRAYBOUND rgsabound[1];
long lLbound = 0;
long lUbound = 0;
rgsabound[0].lLbound = 0;
rgsabound[0].cElements = pList1->rgsabound[0].cElements +…
0
votes
1 answer
Equivalent of _variant_t in Qt
I am trying to translate a Visual-C++ code to Qt.
Is there an equivalent of _variant_t?
The code is:
//
// Get safarray containing all vectors from multibuffer
//
_variant_t vaArray(function->GetAllValues(TRUE)); // Take ownership of the variant -…
Maxbester
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